Limiting Search results to single site collection

I am trying to create a search scope that will only return results from theroot site collection.Currently on the sharepoint home page I have the option to search All Sites,This Site: Sharepoint Home, People.

When I do a search using "All Sites" I get results from all three of ourMOSS web applications, as expected.

But, when I do a search using "This Site: Sharepoint Home" i get resultsfrom every site collection in the Web the web application I in.

I need to create a scope that will limit the results just to the currentSite Collection in the web application. Any ideas?

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